A stair intermediate railing and handrail assembly is anchored into concrete stairs. The assembly features 1-1/2" x 1-1/2" hollow structural section steel tube vertical posts spaced at 48" on center unless otherwise noted, supported by 5/8" diameter steel bar support brackets at each vertical post. Additional 1-1/2" x 1-1/2" hollow structural section steel tube railings run parallel to the stair slope. A 1-1/4" nominal diameter steel pipe handrail is mounted above the intermediate railing. Each vertical post is anchored into a 2-1/2" diameter minimum concrete insert filled with non-shrink grout. All stair railing connections and intersections are welded and ground smooth.
FL EL OR LANDING FL EL 6" MIN 7 1/32" MAX 5 1/2" 11" 3' - 6" DIM LINE OF STAIR NOSING LINE OF STAIR TREAD/ NOSING NOTE: WELD & GRIND SMOOTH EACH STAIR RAILING CONNECTION & INTERSECTION 1 1/2" X 1 1/2" HSS STEEL TUBE VERTICAL POSTS @ 48" OC, UON 5/8" DIA STEEL BAR SUPPORT BRACKET AT EACH VERT POST 1 1/2" X 1 1/2" HSS STEEL TUBE RAILINGS 1 1/4" NOM DIA STEEL PIPE HANDRAIL 5 1/2" 1' - 4 1/4" 1 1/2" 1 1/2" 1 1/2" X 1 1/2" HSS STEEL TUBE VERT POST @ 48" OC, UON 1 1/2" X 1 1/2" HSS STEEL TUBE RAILINGS 12" 1' - 0" 2 1/2" DIA MIN CONC INSERT @ EACH VERT POST, FILL W/ NON SHRINK GROUT 3" 2'-10" 2'-10" 1' - 0" DIM LINE OF STAIR NOSING LINE OF STAIR TREAD/ RISER 2 1/2" DIA MIN CONC INSERT @ EACH VERT POST, FILL W/ NON SHRINK GROUT NOTE: WELD & GRIND SMOOTH EACH STAIR RAILING CONNECTION & INTERSECTION EQ EQ 6" MIN 7" MAX 1 1/4" NOM DIA STEEL PIPE HANDRAIL 1 1/4" NOM DIA STEEL PIPE VERT POST @ 48" OC, UON 1' - 0" 2' - 10" 2' - 10" 2-10"
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